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BC449 数据表(PDF) 4 Page - ON Semiconductor |
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BC449 数据表(HTML) 4 Page - ON Semiconductor |
4 / 6 page ![]() BC447, BC449, BC449A http://onsemi.com 4 Figure 7. Collector Saturation Region Figure 8. Base-Emitter Temperature Coefficient IC, COLLECTOR CURRENT (mA) IB, BASE CURRENT (mA) 100 0.2 10 1.0 2.0 5.0 20 50 200 0.1 10 0.05 2.0 1.6 1.2 0.8 0.4 0 1.0 TJ = 25°C IC = 100 mA IC = 50 mA IC = 200 mA IC = 20 mA IC = 10 mA 20 2.0 5.0 0.2 0.5 −1.0 −1.4 −1.8 −2.2 −2.6 −3.0 RqVB FOR VBE −55°C TO 125°C 0.5 0.02 Figure 9. Thermal Response t, TIME (ms) 1.0 2.0 5.0 10 20 50 100 200 500 1.0 k 2.0 k 5.0 k 10 k 20 k 50 k 100 k 0.03 0.02 0.1 0.07 0.05 0.01 0.3 0.2 1.0 0.7 0.5 ZθJC(t) = r(t) • RθJC TJ(pk) − TC = P(pk) ZθJC(t) ZθJA(t) = r(t) • RθJA TJ(pk) − TA = P(pk) ZθJA(t) D CURVES APPLY FOR POWER PULSE TRAIN SHOWN READ TIME AT t1 (SEE AN469) t1 t2 DUTY CYCLE, D = t1/t2 P(pk) D = 0.5 0.2 0.1 0.02 0.01 SINGLE PULSE SINGLE PULSE 0.05 |
类似零件编号 - BC449 |
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类似说明 - BC449 |
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